Response to AT&T's letter to FCC on Google Voice — This afternoon AT&T filed a letter with the Federal Communications Commission, alleging that Google Voice is preventing its users from making outbound calls to certain phone numbers with inflated access charges, and asking the Commission to intervene.

AT&T: net neutrality should apply to Web firms too — WASHINGTON/NEW YORK (Reuters) - AT&T Inc said any new “net neutrality” rules imposed by U.S. regulators need to apply to Web companies like Google Inc as much as to phone companies to ensure a level playing field.

Early Twitter Backer Union Square Sits This One Out — Twitter CEO Evan Williams thanked a long list of investors in his blog post today formally announcing his newest funding round. Not included: New York's Union Square Ventures, which has been one of the messaging service's most prominent backers …

AT&T Activates MMS Functionality for U.S. iPhone Users — As previously scheduled, AT&T has activated MMS for iPhone 3G and 3GS users in the United States, bringing to an end months of speculation and waiting since software support for the feature was introduced in iPhone OS 3.0 in mid-June.

Analyst: Reports that Verizon Snubbed Palm “Off Base” — Analysts who follow Palm (PALM) are already rolling their eyes over TheStreet.com's claim that Verizon (VZ) has balked at adding the company's new Pre handset to its lineup. In a research note this morning, Deutsche Bank's Jonathan Goldberg dismissed it as “off base.”

Apple's Shadow Hangs Over Game Console Makers — TOKYO — As video game giants like Sony and Microsoft touted their new gizmos at the Tokyo Game Show this week, industry executives had more than the coming holiday sales season on their minds. — Apple's recent foray into video games …

Mozilla coders join Palm, apparently jabbing Apple — Two prominent Web-based programming advocates have left Mozilla for Palm, arguing that the time has come to use browsers to bypass Apple's controlling role in mobile applications. — Dion Almaer and Ben Galbraith …

VERDICT: Why Gawker Will Win The McSteamy Sex Tape Lawsuit — We all know the details by now: — Grey's Anatomy's McSteamy, his wife, and what is apparently a very good friend made a sexless sex tape. Gawker posted the video and McSteamy and wife (hereinafter referred to collectively as “McSteamy") sue.

Microsoft: Google Chrome Frame makes IE less secure — Microsoft does not recommend that Internet Explorer users install Google Chrome Frame, in order to avoid having more security issues. — The release of Google Chrome Frame, a new open source plugin that injects Chrome's renderer …

San Francisco Launches City App Store — This guest post was written by San Francisco Mayor Gavin Newsom, who was elected to the position in 2003 and reelected in 2007. In this guest post, Mayor Newsom details the launch of a City App Store, the DataSF App Showcase, a new web site …

Sticky situation: WhoGlue v. Facebook — By now, you may have heard about WhoGlue Inc., a tiny Baltimore tech firm, launching a lawsuit this week against Facebook for infringing on a key patent that essentially covers social networking and privacy features. (Here's my original story from yesterday.)

Google Maps to be plastered with ads — THEY know where you are and where you have been but now, with the help of internet mapping technology, advertisers are trying to predict what you want. — In the coming weeks Google will put logos for fast food chains, coffee shops, hotels and travel agents on its popular maps site.

Windows 7 PCs to go on sale early — Windows 7, which is scheduled to launch on October 22, will be available nine days early via PC purchases from system builders, also called small custom PC makers. — If you've been putting off buying a new PC because you're waiting for Windows 7 to ship, you're in luck.